Java Conditional Statement Exercises: Print the Floyd's Triangle
Java Conditional Statement: Exercise-20 with Solution
Write a program in Java to print the Floyd's Triangle.
Floyd's triangle is a right-angled triangular array of natural numbers, used in computer science education. It is named after Robert Floyd. It is defined by filling the rows of the triangle with consecutive numbers, starting with a 1 in the top left corner:
Test Data
Input number of rows : 5
Pictorial Presentation:
Sample Solution:
Java Code:
import java.util.Scanner;
public class Main {
public static void main(String[] args)
{
int numberOfRows;
System.out.print("Input number of rows : ");
Scanner in = new Scanner(System.in);
numberOfRows = in.nextInt();
int number = 1;
for (int row = 1; row <= numberOfRows; row++)
{
for (int column = 1; column <= row; column++)
{
System.out.print(number + " ");
number++;
}
System.out.println();
}
}
}
Sample Output:
Input number of rows : 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Flowchart:
Java Code Editor:
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Previous: Write a program in Java to print such pattern like a pyramid with a number which will repeat the number in the same row.
Next: Write a program in Java to display the pattern like a diamond.
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Java: Tips of the Day
How to sort an ArrayList?
Collections.sort(testList); Collections.reverse(testList);
That will do what you want. Remember to import Collections though!
Ref: https://bit.ly/32urdSe
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